Combination gas and coal range



Sept. 4, 1923.

J. F. SULLlVAN D COAL RANGE COMBINATION GAS AN Filed Sept. 5. 1 2 sneaks-sheet 1 Qllllllll 0w 7 J T 1 2 1 1 .Ou Ill\ 1 w ,Tnve: If 01 [ZZZ/(112,

Sept. 4, 1923. 1,466,769 J. F. SULLVAN COMBINATION GAS AND COAL RANGE Filed Sept. 5. 1922 2 Sheets-Shut 2 uuuiiiiiiliiiun Ming 2 A Even to .2

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Patented Sept. 4, 1923.

UNITED s- Arts teem PATENT OFFICE.

JOHN F. SULLIVAN, OFSAN FRANCISCO, CALIFORNIA.

ooniarner ron ens Application ,filed September To all wit-m z'tmay concern: i 'Be itknown that I, JOHN'ESULLIVAN, a citizen of the United States, residing at the city and county of San FranciscoandState of California, have invented certain'new and useful Improvements in Combination Gas and Coal Ranges, of lwhich the fo'lloW-. i11 is a specification. Iy invention relates to thatzclass oi cool; stoves or ranges whiclnfrom their adaptability for the use of gaseous or solid fuel, have come to beknown and'coal ranges, v k One object ofmy invention is to incorpo; rate the coal heat member of the combination in a position relativelyto the gasheat members, which will not only give full play and effect to its functions in cooking, heat- 7 ing the kitchen, and consuming garbage, but also" will confinethe whole structure within reasonable dimensions. f x I Another object of my invention is to provide for a sufficientlyjefliective heat presenta. "tion. of thecoal heat membenat tie same 28 time providing for a moreperfect combust'ion of itsfu'el. l i

Another object is to better adapt the I broiler and oven Inez'nb'erssubject to gas heat, for "conjoint use with the coalhe'at 0 member, or for the independent use of either, by means for properly controlling the communication between the broilerfand oven members. v I Another object is to provide for an effective discharge of the gas fumes. from the oven member. V I WVith these objects in view, my invention consists in the novel combination gas and I coal range which I shall now fully describe by reference to the accompanying drawings, in which. I i Fig. 1 is a front View of my range partly in elevation and partly in vertical'sec'tion. I Fig. '2 is al horizontal section on the line 2'--2 o1tFig.1. ig. 3' is a horizontal section on the line r 3 -3 of Fig. 1.

Fig. 4 is a horizontal section on the line 44 of Fig. 1. Fig. 5 is a front elevation of the members shown in section in Fig. 1. I y Fig, 6 is a section on the line 66 of Fig. 5.

, partly broken [as combination gas stove-pipe and the members adjacent thereto at the back of therangc.

Referring to Fig. 1, the numeral 1 indif cates the main top, 2 the high shelf. 8 the broiler with its pan 3' and 4 the even of a common type of gas range. Incorporated in the general frame of the range and di- -rectly underlying the broiler 3 is a coal heater member indicated as a whole by 5, andcomprising a grate 6, an as i-pit 7 and a top plate 8. The grate 6 underlies the outer section area of the bottom of the broiler,

and the top plate .8 underlies and'is spaced from the inner section area of said broiler bottom and extends to and is closed. in by the wall ofthc broiler structure extended downward, all as clearly shown in Fig. 1. At the back endof the space between the top plate 8 and the broiler bottom there is a damper 9, Fig. 7, operated by a rod 10,

Fig. 4,-and controlling the communication ofsaid space with .fhe'store pipe 11 to the chimney, andin said'space there :niay be fitted adcfiector plate 8-Figs. 4 and 1,:tor the'products of combustion. r

It will now be seen that the products of combustion from the fuel in the coal heater bare not circulated in an extensive path about the other members ofthe range as is common in the art but pass directly to the stove pipe as indicated by the arrows in Fig. 4. Combustion is thus not retarded and is relatively complete so that smoke and soot are reducedto a minimum. The'heat from the combustion of fuel, such as coal, wood, or garbage, in the member 5, is util ized for heating the chamber 3 which when gas alone isused is the broiler chamber, but i which when used with the heat from memher 5 may be used as an oven and this heat is directed wholly by radiation through the bottom of the chamber 3. And, moreover,

the member ,5 is adapted forthe desirable functions of a kitchen heater and a garbage v incinerator. is. also of advantage in that it keeps'thc Its location below the broiler whole range within a relatively short length, as seen in Fig. 1. In order. to feed the heater 5, there may .be a pouchfeed through the door 12, and in I addition thereto the outer section of the bottom of the broiler lying above the grate or fire box 6 is made as a sepa ate plate Figs. 1, 1- and 6, which may be lifted shown by the dotted lines in Fi 6, and supported upon a lu 1%, so that by opening the broiler door, and lifting the plate 13, tl e fire box is exposed to permit the dumping into it of larger fuel. The plate 13 may have griddles 15, as shown in '-.l; and 6. The broiler 8, as seen in 1 and (Elias the usual gas burners 16, and said broiler and the oven 4 communicate through the usual side openings 17, Fig. 1.

lVhen the coal heater is used the oven l may be used as a warming chamber, deriving a modicum of heat from the broiler chamber. But in most in order to confine the heat to the latter chamber when the coal heater is used, it is best to cut out the oven 4- entirely, and for this pt rpose T have the damper slides 18, 1 and 3, which are adapted to close and. open the communications 17, said slides being operated by a sliding rod 19 and parallel side links 20.

Air is supplied tothe he ted chambers through the usual holes 21, in the doors, Fig. 5.

The gas fumes from the oven rise to the openings 22 in the upper lining of the oven at the back, Figs. 2 and 6, and thence pass forwardly between the top lining and the top plate of the oven, to the front, as indicated by the arrows in Fig. 2. Thence they pass through openings 28 into inclined flues 9A, Figs. 2, 6 and 7, formed in the sides at the top of the oven and thence to a top flue 25 at the back-Fig. 2, which flue communicates by a short pipe section 26 with the stove pipe to the chimney, as seen in Fig. 2.

The range may operate solely with gas, or with such fuel as coal, wood or garbage,

or both forms of fuel may be used together.

Although I have herein entitled my improved range, and described and claimed the same in terms of gas heat as the principal source, associated with coal heat, it is to be understood that my invention is equally applicable to a range in which the chief heat is electric, the electric heating elements being, as far as the combinations described and claimed are concerned, the equivalents of the gas burners, and are so herein contemplated.

I claim 1. A combination gas and coal range comprisinga main top; a broiler at one end of the main top; suitable heating elements for the main top and broiler; and a coal heater underlying and adjoining the broiler, the bottom of the broiler forming the immediate and sole cover of the coal heater and uninterruptedly exposed to the products of combustion oi": the fuel in said heater.

2. A combination gas and coal range comprising a main top; a broiler at one end of the main top; suitable heating elements for the main top and broiler; and a coal heater underlying the broiler, the bottom of the broiler being directly exposed to the products of combustion of the fuel in the coal heater, and said broiler bottom having a movable section to afiiord fuel-feed access to the coal heater through the broiler.

3. A combination gas and coal range comprising a main top; a broiler at one end of the main top; suitable heating elements for the main top and broiler; and a coal heater underlying the broiler, the bottom of the broiler being directly exposed to the products of combustion of the fuel in the coal heater, and said broiler bottom having a movable section to afford fuel-teed access to the coal heater through the broiler, said movable section being provided with griddles.

i. A combination gas and coal range comprising a main'top; a broiler at one end of the main top; an oven above and communicating with the broiler; a damper for controlling said communication;suitable burners for the main top and broiler; and a coal heater underlying the broiler, the bottom of the broiler being directly exposed to the products OfCOmbUStiOll ot'the fuel in the coal heater. p

5. A combination gas and coal range comprising a main top; a broiler at one end of the main top; suitable heating elements for the main top and broiler; a coal heater underlyingand adjoiningthe broiler, the bottom of the broiler forming the immediate and sole cover of the coal heater and uninterruptedly exposed to the products of combustion of the fuel in said heater, said bottom being raised above the coal heater to provide an escape fine for said products of combustion and a stove pipe into which the products of combustion directly pass from and at the level of said escape line. I

6. A combination gas and coal range comprising a main top; a broiler at one end of the main top; an oven above and communicating with the broiler; a damper for controlling said communication; suitable burners for the main top and broiler; a coal heater underlying and adioining the broiler, the bottom of the broiler forming the immediate and sole cover of: the coal heater and uninterruptedly exposed to the products of combustion of the fuel in said heater, said bottom being raised above the coal heater to provide an escape flue under said bottom for .said products of combustion; and a stove pipe into which the products of combustion directly pass from and at the level of said escape flue.

7. A combination gas and coal range comprising a main top; a broiler at one end of the main top; suitable heating elements for the main top and broiler; a coal heater underlying the broiler, the bottom of the broiler being directly exposed to the products of combustion of the fuel in the coal heater and spaced from the top of said heater to provide' an escape flue under said bottom for said products of combustion, and said broiler bottom having a movable section to afford fuel-feed access to the coal heater through the broiler; and a stove pipe into Whichthe products of combustion directly pass from said escape flue. V p

8. A combination gas and coal range coinprising a main top; a broiler at one end of the main .top; an oven above and communieating with the broiler; a damper for controlling said communication; suitable gas burners fort-he main top and broiler; a coal heater underlying the broiler, the bottom of the broiler being directly exposed to the products of combustion of the fuel in the coal heater, and spaced from the top of said coal heater to provide an escape flue under said bottom for said products of combustion; a stove pipe into. Which the productsof combustion directly pass from said escape flue; and means for conducting the gas fumes from the oven forwardly above its top and thence backwardly along its sides to the stove pipe. A

9. A combination gas and coal range comprising a main top; a broiler at one end of the main top; an oven above and communieating with the broiler; suitable gas burners for the main top and broiler; a coal heater underlying the broiler, thebottom of the broiler being directly exposed to the products of combustion of the fuel in the coal heater and spaced from the top of said heater to provide an escape flue under said bottom for said products of combustion, and said broiler bottom having a movable section to afford fuel feed access to the coal heater through the broiler; a stove pipe into which JOHN F. SULLIVAN. 

